Re: [PATCH v5 1/4] dt-bindings: media: qcom,venus-common: Add IOMMU IOVA reservation region

[Krzysztof Kozlowski]

On Wed, Jul 22, 2026 at 07:11:18PM +0530, Vikash Garodia wrote:
> Update the memory-region property to support two regions:
> 1. Firmware-loaded codec carveout (existing)
> 2. IOMMU IOVA reservation region (new)
> 
> The IOMMU IOVA reservation region is required to restrict usage of
> specific IOVA memory range. For example, VPU restricts usage of 600MB
> for specific streams, which could otherwise lead to device crash. This
> change allows platforms to define separate memory regions for codec
> carveout and IOVA restrictions.
> This schema update supports existing DTS having single memory-region,
> thereby allowing gradual migration of DTS to support two memory region.
> 
> Signed-off-by: Vikash Garodia <vikash.garodia@xxxxxxxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/media/qcom,venus-common.yaml | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>

Best regards,
Krzysztof